As there are a few Centmin Mod LEMP stack users here, thought I'd give folks a heads up to ensure they have updated their CentOS version to latest version either 6.9 or 7.4 to get the latest curl and git versions that support TLSv1.2. Some folks forget to update. But it's in your best interest to keep up to date.

Otherwise, Centmin Mod git backed updates and Paypal usage via PHP/curl will be broken as Github has forced TLSv1.2 only and Paypal is forcing TLSv1.2 or TLSv1.1.